Design of Experiments: Improved Experimental Methods in Aerospace Testing (2-Days) 4 January - 5 January 2020 Hyatt Regency, Orlando, Florida
Aerospace researchers with considerable subject-matter expertise but little formal training in the design of experiments can improve their research quality and productivity through learning statistically based experiment design. A formal approach to experiment design ensures empirical model adequacy, quantifies variability in predictions and identifies all possible independent variable interactions. Built in safeguards protect against influences of unwanted variability. Examples are drawn from specific studies that illustrate resource savings, quality improvements, and enhanced insights from well-designed experiments. The class structure features short lectures followed by in-class problem solving exercises using software. Students receive note sets containing all slides presented, exercises and solutions. The class concludes with an in-class experiment.
- Key advantages of Design of Experiments (DOE) over traditional experiment design methods
- How to specify the proper volume of data to enhance the probability of success and understand the concepts of inferential risk
- Full and fractional factorial designs to efficiently quantify main effects and interactions
- Experimental tactics to minimize and quantify unexplained variance (uncertainty)
- Introduction to Response Surface Methods
- Experience with experiment design software (Design Expert) including in-class exercises and an experiment
Who Should Attend
This is a course in experimental methods that is applicable to multiple disciplines. It is intended for scientists, engineers, and program, project, and line managers involved in the design and execution of experimental aerospace research, or in product/process improvement. Undergraduate and graduate students in engineering and scientific disciplines would also benefit from exposure to the concepts presented in this course.
Each student will be responsible for bringing their own laptop computer. Software for the course is Design Expert which will be provided for training purposes. The software operates in a Windows PC environment.
Please contact Jason Cole if you have any questions about courses and workshops at AIAA forums.
- History and need for improved experimental methods in Aerospace Testing
- The t and F distributions
- Confidence Intervals
- Two-sample t-test
- Power and Sample size
- Introduction to Factorial designs
- Main and Interaction effects
- 2k design and analysis
- Sequential assembly
- Wind tunnel test example Outline
- 2k Design and Analysis Details
- Center points and replication: pure error
- Tests for curvature and model lack of fit
- Regression models
- Fractional factorial designs
- Aliasing and design resolution
- Wind tunnel balance calibration case study
- Response surface methods
- Central Composite Designs
- Regression and use of ANOVA
- Wind tunnel case study
- In-class experiment
- Introductions to restricted randomization
- Balance calibration with temperature case study
- Mars parachute wind tunnel test case study
Course notes will be made available about one week prior to the course event. You will receive an email with detailed instructions on how to access your course notes. Since these notes will not be distributed on site, AIAA and your course instructor highly recommend that you bring your computer with the course notes already downloaded.